Governor for heaters



(No Model.) sheets-sheet 1.

G.l B. BOSWORTH. GOVERNOR FOR HEATBRS.

No. 473,056. PatentedApr. 19,1892.

WITIJEEEEE (No Model.) l 2 Sheets- Sheet 2.

C. B. BOSWORTH.

GOVERNOR FOR HEATERS.

No. 473,056. Patented Apr. 19,1892.

Vthe heater.

' UNITED STATES PATENT Erica.V

CHARLES BARTLETT BOSVORTH, OF EVERETT, ASSIGNOR TO THE CROSBY STEAM GAGE AND VALVE COMPANY, OF BOSTON, MASSACHUSETTS.

GOVERNOR FOR HEATERS.

SPECIFICATION forming part of Letters Patent No. 473,056, dated April 19, 1892.

Application filed January 22, 1892. Serial No. 418,907. (No model.)

To all whom, it may concern:

Be it known that I, CHARLES BARTLETT BOSWORTH, a citizen of the United States, residing at Everett, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Governors for Open Feed-Tater Heaters; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

Figure l represents the device attached for use. Fig. 2 is a section through the floatchamber, Fig. l. Fig. 3 is a section through the water-valve and governor, Fig. 1. Fig. 4,

is a detail section.

This device is a governor-.for an open feedwater heater, and is attached to that class of heaters within'which the water is not under pressure before it is forced to the boiler through the pump employed. Such a heater is constructed to receive into or through it the eXhaust-pipeof a steam-engine, and the Water is warmed or heated either by coming in contact with the large exhaust-pipe passing through it or byv being projected in the form of a spray into the steam which enters it from the exhaust-pipe. It is important in either case that the water shall not rise above a given point, as, if it does, it may iiow intol the end of the exhaust-pipe and so disturb the operations of the engine to which it would be conveyed. Heretofore the water has been controlled in its height by manipulation, on the part of a man, of the water-valve, which supplies it With water either directly from a street-main or aqueduct or by a pump forcing it into the heater, observing therise and fall of it through a gage-glass connected with The present device is so perfect in its operation and control of the water supplied to the heater that the water-line once determined upon by its attachment to the heater does not vary in its rise and fall more than half an inch.

In the annexed drawings, the letter' A indicates an open feed-water heater having the water-supply pipe B, which comes from any source and enters the heater A above the water-level. Passing into the heater A is the exhaust-pipe C from a steam-engine, and the pipe C is to lead hot water out. Attached to the heater is a float-chamber D, connected by the pipes d and d with the heater A above and below the Water-levels. This float-chainber has an angular enlargement d2, in which is pivoted the steine of a float E, which is in the main Heat-chamber. In the enlargement d2, just above the stem e, is a valve-opening f, which is closed by a valve f', which rests upon the float-stein e. From this valve-opening f a pipe F passes and is connected with the water-supply pipe B through a larger pipe or couplingv G. Where the pipesF and G are connected together there is placed a diaphragm g, Fig. 4, having the perforation g. In the'pipe G is a valve g2. Located in the pipe B, above the pipe G, is the ordinary water-valve H, providedwith its governor I. The stem h of the valve H passes out of the valvecasing and up into a chamber 7o of a box K, where it is headed and surrounded by a spring 7o,which bears between the head h of the stem 71, and the bottom of the chamber 7c. The head 71, of the stem h rests againstapiston h2, which in turn rests against a diaphragm k2, secured across the top enlargement k3 of the box K. Above the diaphragm k2 the interior of the box K is connected by a pipe Z with the pipe F.

Operation: The Water is turned on by opening the positive valve M.' As the water flows, it passes through the valve H and into the top of the heater. Water also passes through the Valve g2, pipe G, perforation g, and pipe. Fl into the iioat-chamber D. As the water rises in the heater, it also rises in the iioat-chamber. As the oat E rises, its stem c gradually lifts the valve f and closes the opening f. When this occurs, the water in the pipe F flows through the pipe Z, and, bearing upon the diaphragm k2, depresses the valve H, closing it and cutting off the flow of water to the heater; As the Water falls in the latter, the valve f is opened and the valve H released. The perforation g in the diaphragm g, being smaller in cross-section than the pipe, reduces the quantity or flow of water from the main pipe to the water-valve regulator and the oat-chambensothat the small valve in the float-chamber Will be sufficientto take care 'of it. It is only necessary to have just IOO enough uid to reach the piston of the regulater of the water-valve as shall close the Watervalve. Any more than thatwould not only be un11eeessary,'but Would be troublesome.

Having thus described my invention, What I claim isl.

l. The combination of a Water-reservoir, its supply-pipe, a valve located in such pipe and provided with a governor, a fioateha1nber oonneeted to and communicating with 4sueh reservoir and provided with a fioat, and a valveopening provided with a valve, apipe leading from such valve-opening and communicating with the Watensupply pipe, and another pipe leading from such last pipe to the water-valve governor, as set; forth.

pipe leading t-o 'such Valve-opening from a fluid under pressure and also connected with the Water-valve governor, as set forth.

In testimony whereof I affix my signature in presence of two Witnesses.

CHARLES BARTLETT BOSWO RTH.

Vitnesses:

JOSHUA H. MILLETT, RALPH W. FOSTER. 

